Hi, thanks for the idea.
I tried modifying the print.plone.less file as follows:
Notes: I used both : .plone-toolbar-container and #plone-toolbar-container because I'm not sure of syntax. Also, the portal-searchbox was already part of the file, I used it as my guide to hide content.
Attached is a screenshot of the print preview, so I'm obviously not doing it right. Any tips?